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Friarton Bridge

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Friarton Bridge
Location Map ( geo)
M90 Friarton Bridge - view from Rhynd Road overbridge.jpg
Cameraicon.png View gallery (6)
From:  Craigend Interchange
To:  Barnhill Junction
Highway Authority
Transport Scotland
Opening Date
28th September 1978
Additional Information
Bridge Type:  Girder Bridge
Engineer:  Cleveland Bridge Company
On road(s)

The Friarton Bridge forms part of the Perth western bypass and was one of the last sections of the M90 to be completed. It was the largest structure on the M90 until the Queensferry Crossing was completed in 2017. The bridge is a bit unusual in design as it is effectively a dual carriageway under motorway restrictions but not unusual for the M90 as 8 miles of it has no hard shoulders anyway. Originally, it was classed as the M85 until the A90 number was extended northwards so it became the M90.

The bridge is a concrete and steel box girder bridge and makes a large impact on the surrounding landscape. The bridge was designed by the Cleveland Bridge Company, and was strengthened in 1990 to cope with the increase in traffic.

Constructing Friarton Bridge

The bridge consists of 9 spans across the Tay Valley, and is effectively two parallel structres, one for either carriageway. The deck is banked on the surved southern approach, necessitating shallow trapezoid box girders. These grow considerably in depth at the piers either side of the main river span, across which the road is level, albeit with a slight camber. The box girders then form shallow arches over the river. There are 6 spans to the south of the river and two to the north.


Friarton Bridge
Related Pictures
View gallery (6)
Friarton Bridge.jpgConstructing Friarton Bridge.jpgFriarton Bridge from the south.jpgFriarton Bridge from the north-east.jpgM90 Friarton Bridge - view from Rhynd Road overbridge.jpg
Crossings of the River Tay, and Tributaries
River TayKenmore Bridge • Aberfeldy Bridge • Grandtully Bridge • Pitnacree Bridge • Logierait Bridge • A9 Tay Bridge • Dunkeld Bridge • Caputh Bridge • Perth Bridge • Queens Bridge • Friarton Bridge • Tay Road Bridge
Fillan, Dochart & LochayWhite Bridge (Strathfillan) • Bridge of Dochart • Bridge of Lochay
River LyonBridge of Balgie • Bridge of Lyon • Comrie Bridge
River TummelKinloch Rannoch Bridge • Tummel Bridge • Coronation Bridge (Pitlochry) • Aldour Bridge • A9 Tummel Bridge • Ballinluig Bridge
River Garry and TributariesTrinafour Bridge  • Struan Bridge • Bruar Bridge • Dalnaspidal Bridge • Edendon Bridge • Allt Geallaidh Bridge • Dalnamein Bridge • Bridge of Tilt • A9 Garry Bridge • Garry Bridge

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